TODAY MAR05
TEMPERATURE27
HUMIDITY86
PRESSURE30.34
WIND COND.40 13
  • 4827Fri
  • 4826Sat
  • 5236Sun
  • 6243Mon
  • 6352Tue
daynightWeather update from Danville, Vermilion County Airport at

Key findings

  • The highest monthly average temperature in Westville for July is 74 degrees
  • The lowest monthly average temperature in Westville for January is 27 degrees
  • The most monthly precipitation in Westville occurs in August with 10.6 inches
  • The air quality index in Westville is 16% better than the national average
  • The pollution index in Westville is 93% worse than the national average

Compare Westville, IL Weather

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      Westville Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January20°F36°F27°F5.6"
      February20°F37°F28°F3.2"
      March33°F53°F42°F4.2"
      April44°F66°F54°F7.2"
      May54°F75°F64°F7.5"
      June63°F84°F73°F7.8"
      July64°F85°F74°F7.8"
      August62°F84°F73°F10.6"
      September56°F79°F66°F7.9"
      October45°F67°F55°F7.0"
      November34°F53°F43°F6.5"
      December26°F40°F32°F5.0"

      Westville air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexWestvilleIllinoisNational
      Air quality index424150
      Pollution index9,793,5403,347,2955,066,862

      Westville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality281
      Days with moderate air quality84
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Westville air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.010%
      Lead0.001%
      Mercury0.040%

      Average monthly Westville temperature with heat index

      Westville monthly precipitation with daily maximum

      Westville monthly snow depth with daily maximum

      Westville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Catlin, IL2,0594216%
      Muncie, IL1944216%
      Indianola, IL3184216%
      Danville, IL32,0304216%
      Sidell, IL5204216%
      Westville, IL3,3034216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Oak Valley, NJ3,303512%
      Carlyle, IL3,3034314%
      Bishopville, SC3,3034020%
      Wellsboro, PA3,3043530%
      Richville, OH3,304468%
      Westville, IL3,3034216%
      Source: The Westville, IL weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.